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Ships need ballast water to improve their stability and balance their load; this water is carried in tanks, the double bottom, the fore and aft peak tanks and side spaces.

Exhaust gas and auxiliary boilers are used to generate thermal oil or steam – for example, for heating or cleaning tanks, preheating HFO, producing drinking water or heating water and living areas. Today, steam turbo-generators are also used to generate electricity for very large engines.

HVAC systems serve to condition the air in living areas and provisions rooms. Amongst other things, HVAC systems consist of a closed water cycle in which a volume flow of water conveys heat or cold from the generator (heat exchanger, boiler, chiller) to the consumer (cooler, heater) with the aid of circulating pumps. ARI STEVI control valves maintain the correct balance in this cycle by controlling the volume flow.

A lot of components are needed to heat a building. Boilers, pumps and radiators are probably the most obvious ones that spring to mind, yet the piping system and the many different kinds of valves installed in it also play a vital part. 

Air conditioning and cold water applications comprise anything that serves to dissipate the heat loss from technical components into the atmosphere – and prevent these components from overheating.

District heat is produced mainly by cogeneration in large power plants, small combined heat and power (CHP) plants, waste incineration plants or district heating plants. It can be generated using fossil fuels or fuels from renewable resources as well as from waste heat, and it represents an important instrument for achieving climate protection targets in the framework of the energy turnaround. Cogeneration using combined heat and power enables energy to be utilised in an environmentally...